related to pre-determining the sectors: if this is going to be an actual game, this would be an opportunity to have the players roll up the systems using sensors and all that. Depending on the players, of course. If I were to play in such a game, I'd love to just start generating a system that I've "discovered" and get into all the nooks and crannies. It would give me some ownership of the game.
Somewhere on this board someone did that with the character generation: it was also home world generation and they got to help shape their home systems and the subsector. That sort of metagaming is how I like to play, but is definitely not how a lot of people want to play.
edit: plus, just how old is the sensor data again? I think it was long enough for significant geophysical changes.
Here is a starter subsector for you, in it, I have just the listed star types and indicating whether the system is binary followed by which orbit the binary is in using the standard orbits as listed in the classic scout book, and for convenience I have listed the distance the binary is from the primary in AU where that applies.
Hex number Layer number Nature Primary Binary & Orbit Orbit distance (AU)
0707 layer 8 Alpha Solo K0 V
0207 layer 7 Beta Solo M5 V
0406 layer 7 Gamma Binary F5 II, G5 V Orbit 2 0.7
0409 layer 7 Delta Solo K5 V
0604 layer 7 Epsilon Binary K0 V, M5 V Orbit 10 77.2
0708 layer 7 Zeta Solo K0 V
0302 layer 6 Eta Binary K5 V, M0 V Orbit 10 77.2
0403 layer 6 Theta Solo M5 V
0709 layer 6 Iota Solo M5 III
0306 layer 5 Kappa Solo F0 V
0502 layer 5 Lambda Solo A5 V
0708 layer 5 Mu Solo K0 V
0207 layer 4 Nu Solo M5 V
0307 layer 4 Xi Solo M5 V
0702 layer 4 Omicron Solo K0 V
0706 layer 4 Pi Solo K5 V
0102 layer 3 Rho Solo F0 V
0208 layer 2 Sigma Binary G0 V, G0 V Orbit 16 4915.6
0609 layer 2 Tau Solo G0 V
0702 layer 1 Upsilon Binary K0 V, M5 V Orbit Close
You can ignore the layer number if you just want a 2D map, if two star systems are located in the same hex, you can do a number of things to resolve it, including putting one of the systems in an adjacent hex, or just having two systems within the same hex, unlike a binary, these two systems aren't gravitationally bound together, they are just passing by each other at an unusually close distance.